OPERATOR`S SAFETY AND SERVICE MANUAL
Contents
1. Engine Engine Oil 4 25222 op eater nd aa die Al Engine Speed GGA inerte ge ede te nt Lubrication 7 RE 8 Storage c LAS s Eee AN epus bus 8 Changing Trowel Blades 8 Setting Tilt Arm Carriage Bolt Height 8 ServiGa ol elei Oud cee eee teens 9 Service Tools 9 Gearbox Disassembly 9 Gearbox Assembly 9 CFP Handle Cable Spring Replacement 10 Standard Handle Pitch Cable Replacement 11 Spider Bushing Replacement 12 Parts Replacement Cycles and Tolerances 12 Replacement Parts 13 Gearbox 14 Spider Assembly 16 Centrifugal Clutch Drive Assembly 18 Guard Assembly 20 Handle Assembly 22 Constant Force Handle Assembly 24 Engine Assembly 26 Warranty 28 WARNING CALIFORNIA PROPOSITION 65 WARNING Engine exhaust and some ofits constituents are known in the state of California to cause cancer birth defects and other reproductive harm SAFETY INFORMATION Introduction This Safety Alert Symbol is use2. O 5 c o 1 v 1 2 aug 212 55 e o o ITEM PART NO DESCRIPTION z z 210 0 21 2 X 1 00032 KEY 3 16 SQUARE x 1 5 8 LONG 1 1 1 01161 KEY 1 4 SQUARE x 1 1 2 LONG 1 1 2 01099 WASHER 5 16 SPECIAL 1 1 1 06638 WASHER 3 8 SPECIAL 1 1 3 01289 V BELT A 27 1 1 1 01078 V BELT A 29 1 01013 V BELT A 30 1 07288 V BELT A 32 F46 4HD only 1 4 06340 SPACER 1 1 1 1 06378 SPACER 1 5 06378 SPACER 1 1 1 1 06340 SPACER 1 6 06378 SPACER 1 1 1 T 06473 CLUTCH 3 4 BORE includes 8 13 amp 18 1 1 1 06606 CLUTCH 1 BORE includes 8 13 amp 18 1 1 8 06618 WEIGHT set of 4 1 1 1 1 1 9 06619 SPRING 1 1 1 1 1 10 06620 BEARING 1 1 1 1 1 11 06746 SHEAVE 1 1 1 1 1 12 06858 KEY 3 16 SQUARE x 5 8 LONG 1 1 1 1 1 13 F051806FWS FLANGE SCREW 5 16 18 3 4 1 1 1 1 1 14 F052416HCS HEX HEAD CAP SCREW 5 16 24 x 2 1 1 1 F072012HCS HEX HEAD CAP SCREW 7 16 20 x 1 1 2 1 F062410SCS SOCKET HEAD CAP SCREW 3 8 24 x 1 1 4 1 15 FOSLW LOCKWASHER 5 16 1 1 1 FO7LW LOCKWASHER 7 16 1 FO6LW LOCKWASHER 3 8 1 16 FO6SW WASHER 3 8 1 1 1 1 1 17 F12SW WASHER 3 4 1 19 gt E lt 5 5 20 al re E o o N o
3. 8 Remove the cover and discard the shims 13 and the o ring 6 Pull out the shaft 18 with the bearings 3 and the worm gear 17 Drain oil out of gearbox Remove the four flange bolts 24 and the bearing cap 20 Discard the shim gasket 12 and the o ring 23 Remove the worm shaft 15 with the spacer 16 and the bearings 4 Remove the retaining cap 10 and discard the shim gasket 12 and the o ring 23 Gearbox Assembly Refer to Gearbox Assembly page 14 1 Lightly oil the shaft 18 Install the key 19 and the retaining ring 2 onto the shaft With the retaining ring end of the shaft down press the worm gear 17 onto the shaft Make sure the longer hub of the worm gear is down The worm gear should be pressed on the shaft until the recess in the worm gear hub is snug against the retaining ring 3 Press one bearing 3 on each end of the shaft Make sure the bearings are butted against the worm gear shoulders 4 Press one bearing 4 on each end of the worm shaft 15 Make sure the bearings are butted against the worm shaft steps 5 If the bearing races are replaced make sure the new races are properly seated The bearing races in the bottom of the gearbox housing 8 and bearing cap 20 are not replaceable 6 Install a new seal 21 into the bearing cap from the outside Make sure the seal is installed square and flat 7 Set the worm gear and the s
4. MBW 05700 Engine Refer to engine operator owner manual Engine Maintenance Refer to the engine owner s manual for maintenance intervals and procedures Engine Oil Refer to the engine owner s manual for recommended oil change intervals WARNING Never change the oil when engine is hot Always wear protective gloves when working with engine oil To drain the oil lift and tip the trowel forward onto the guard ring using the trowel handle Place a drain pan underneath the engine and remove the drain plug After the oil has finished draining reinstall the plug and clean any spilled oil from the trowel Engine Speed The engine speed is factory preset according to the Specifications section Do not tamper with the governor settings The governor establishes safe operating limits These limits must not be exceeded Cleaning Always clean the trowel thoroughly after each day s operation Dried concrete buildup can hinder performance and shorten the life of the trowel Lubrication 1 Grease the yoke plate and spider see Spider Assembly page 16 every 10 hours or daily with a lithium base low temperature general purpose lube Change the gearbox oil once every season or 500 hours whichever comes first The drain fill plug is located on the right hand side of the gearbox Fill it with 21 oz 620 ml of MBW Worm Gear Oil MBW 05700 The oil should be to the bottom of the fill Setting Tilt Arm Carriage
5. and battery ignition systems can cause severe electrical shocks Avoid contacting these units or their wiring SAFE DRESS Do not wear loose clothing f rings wristwatches etc near machinery NOISE PROTECTION Wear OSHA specified hearing protection devices 2024 Ly a EYE PROTECTION Wear OSHA specified eye shields safety glasses and sweat bands FOOT PROTECTION Wear OSHA specified steel tipped safety shoes HEAD PROTECTION Wear OSHA specified safety helmets DUST PROTECTION Wear OSHA specified dust mask or respirator OPERATOR Keep children and bystanders off and away from the equipment ei ut REFERENCES For details on safety rules and regulations in the United States contact your local Occupational Safety and Health Administration OSHA office Equipment operated in other countries must be operated and serviced in accordance and compliance with any and all safety requirements of that country The publication of these safety precautions is done for your information MBW does not by the publication of these precautions imply or in any way represent that these are the sum of all dangers present near MBW equipment If you are operating MBW equipment it is your responsibility to insure that such operation is in full accordance with all applicable safety requirements and codes All requirements of the United States Federal Occupational Safety and Health Administration Act must be
6. 45 4 4 2 01177 GREASE FITTING STRAIGHT 1 1 3 01258 SPRING 4 4 4 01280 SOCKET HEAD SHOULDER SCREW 3 8 x 3 8 4 5 05324 YOKE PLATE 1 1 6 05330 PRESSURE PLATE 4 1 7 05331 SPIDER 4 ARM includes 14 1 1 8 05347 FINISH BLADE 6 x 14 4 05383 FINISH BLADE 6 x 18 4 9 05356 BEARING 1 1 10 05397 BOLT HOLLOW 4 4 11 05402 COMBINATION BLADE 8 x 14 4 05412 COMBINATION BLADE 8 x 18 4 12 05403 FLOAT BLADE 10 x 14 4 07935 FLOAT BLADE 10 x 18 4 13 05968 CAPLUG set of 12 4 4 14 06459 BUSHING SPLIT 8 8 15 06755 TILT ARM 36 includes 17 amp 21 4 07850 TILT ARM 46 includes 17 amp 21 4 16 07870 STABILIZER 4 ARM 1 17 17190 CARRIAGE BOLT SPECIAL 3 8 16 x 1 1 4 4 4 18 F051812HCS HEAD CAP SCREW 5 16 18 x 1 1 2 8 16 19 F05LW LOCKWASHER 5 16 8 16 20 F061614SHS SQUARE HEAD SET SCREW 3 8 16 x 1 3 4 1 1 21 F0616HN HEX NUT 3 8 16 4 4 22 FOGLW LOCKWASHER 3 8 4 4 REPLACEMENT KITS 01427 GREASE FITTING CAPS sold in sets of 12 5 5 06199 SPIDER amp ARM ASSEMBLY 4 ARM includes 1 3 7 10 15 20 amp 22 1 07898 SPIDER amp ARM ASSEMBLY 4 ARM includes 1 3 7 10 15 20 amp 22 1 07524 PRESSURE PLATE ASSEMBLY 4 ARM includes 5 6 amp 9 1 1 3 arm parts are no longer available order 4 arm parts 17 E lt gt e
7. Bolt Height hole when sitting level Remove ALL the tilt arms from the spider Lifting 2 Remove the blades from all the arms Wear protective gloves when removing the blades the The trowel should be lifted by the lifting bracket attached to edges may be sharp the engine As an alternative it may be lifted by two people on opposite sides of the guard ring 3 Inspect the bottom side of the arms blade mounting surface Remove any nicks cement etc THIS SURFACE MUST BE FLAT 4 Loosen the jam nut and run the carriage bolt in as far The trowel should be stored with blocks supporting the outer as possible guard ring Refer to the engine owner s manual for information regarding storage of the engine Storage 5 Mount the arm to gage 07277 as shown in figure 4 Changing Trowel Blades A WARNING A Trowel blade edges may be sharp when they are Figure 4 worn Wear protective gloves when handling the blades 6 Place a 030 feeler gage between the carriage bolt and the underside of the gage arm and run the 1 Setthe trowel on a level surface carriage bolt up to just contacting the feeler gage There should be a slight drag felt when the feeler 2 Remove the bolts securing the blade to the tilt arm gage is moved between the two surfaces Lift up on the ring guard and slide the blade out from 7 Place a 3 8 open end wrench on the square shoulder under the tilt arm of the carriage bolt and tighten the jam nut DO
8. NOT 4 Slide the new blade under the tilt arm allow the carriage bolt to turn Reinstall the bolts and tighten 8 Recheck clearance with feeler gage and readjust if necessary 6 Checkthat the carriage bolts are set properly If they require adjustment refer to the Setting Tilt Arm Carriage Bolt Height section 10 Lubricate the tilt arm prior to fitting it in spider Repeat items 5 through 8 for ALL remaining tilt arms SERVICE Assembly and disassembly should be performed by a service technician who has been factory trained on MBW equipment The unit should be clean and free of debris Pressure washing before disassembly is recommended Prior to assembly wash all parts in a suitable cleaner solvent Check moving parts for wear and failure Refer to the Replacement section in this manual for tolerance and replacement cycles All shafts and housings should be oiled prior to pressing bearings Also ensure that the bearings are pressed square and are seated properly All bearings should be replaced when rebuilding any exciter or gearbox All gaskets and seals should be replaced after any disassembly Torque Chart SIZE GRADE 2 GRADE 5 GRADE 8 1 4 20 49 in lbs 76 in lbs 9 ft lbs 1 4 28 56 in lbs 87 in lbs 10 ft lbs 5 16 18 8 ft lbs 13 ft lbs 18 ft lbs 5 16 24 9 ft lbs 14 ft lbs 20 ft lbs 3 8 16 15 ft lbs 23 ft lbs 33 ft lbs 3 8 24 17 ft lbs 26 ft lbs 37 ft lbs 7 16 14 24 ft lbs
9. get spring into housing Install bearing spool into spring with 16421 tool Tighten a nut on the threaded rod of the tool against the cover of the spring box to pull the tapered pin into the spring Once the spring is spread the spool can be inserted behind the tapered pin and the tool can be removed Figure 5 Hook cable end to spring 28 and route cable around activating cam 18 Install spring box side covers 64 and secure in place with hardware Mount spring box onto handle using center mount point only Align rear mounting holes but do not install bolts Tighten center mount bolts To engage cable pin in activating cam slot it will be necessary to apply tension to the threaded portion of the cable This can be done by tightening a nut against a spacer such as a deepwell socket on the threaded end While applying tension rotate the lever arm backwards until you feel the cable pin snap into its slot Once in place you will have constant 24 25 26 tension on the lever arm Rotate the lever arm forward and release the trigger to lock the lever ROTATE HANDLE ONCE TENSION IS APPLIED TO CABLE 1 SPACER Figure 6 Install the remaining 4 bolts 32 Tighten the handle pivot bolt 41 Install handle on trowel Standard Handle Pitch Cable Replacement Refer to Handle Assembly page 22 10 11 12 13 11 Remove handle assembly from trowel Remove switch assembly 11 It is n
10. 0 to the inside of the spacer 16 and push it on the worm shaft 15 through the oil seal 21 and up against the bearing 4 on the inside of the gearbox housing CFP Handle Cable Spring Replacement inside the lip of the cover Roll the o ring 6 overthe Refer to Constant Force Handle Assembly page 24 inside lip and into the groove in the cover Install the seal 1 into the cover from the outside and make sure it is installed square and flat 11 Use a piece of thin plastic over the shaft to protect the seal and install the cover into the gearbox housing and secure it with two flange bolts 25 and two flat head screws 26 12 Rotate the shaft there should be a little drag If there is too much drag another shim should be added until a slight drag is felt If there is sideplay in the shaft a shim must be removed 13 Measure the main shaft run out Maximum acceptable total indicator run out is 0035 inches 14 Install the drain plug 27 and relief valve 22 if removed Use pipe sealant on the threads before installation 15 Brush a light coat of oil on the o ring 23 Roll it over the inside lip and into the groove of the retaining cap 10 16 Install two 05360 shims 12 with the retaining cap on the drain plug side of the gearbox housing with four flange bolts 24 Torque the bolts to 90in Ibs in an X pattern 10 Remove handle assembly from machine Support handle assembly i
11. 1 12 07877 CASING 1 13 11742 HANDLE BAR 1 14 16040 COMPRESSING SPRING 1 15 16047 SELF SCREW 1 4 20 x 1 2 2 16 16075 HANDLE 1 17 16078 CLIP BEARING 2 18 16079 CAM ACTIVATING 1 19 16081 LEVER ARM 1 20 16083 LOCK DOG 1 21 16084 TRIGGER PULL 1 22 16086 SHAFT ACTIVATING 1 23 16087 CABLE 1 24 16099 DOWEL PIN 3 16 x 5 1 25 16370 SPRINGBOX 1 26 16372 COVER 2 27 16373 CABLE CLEVIS 1 28 16374 CONSTANT FORCE SPRING 1 29 16375 BEARING SPOOL 1 30 F0312SP SPIROL PIN 3 6 x 1 1 2 3 31 F042003PMS PHMS 1 4 20 x 3 8 ZP 2 32 F042004FWS FWLS 1 4 20 x 1 2 4 33 F042006HCS HHCS 1 4 20 x 3 4 GR5 ZP 4 34 F0420DLN DEFORMED LOCKNUT 1 4 20 4 35 F0420ELN ELASTIC LOCKNUT 1 4 20 2 36 FO4LW LOCKWASHER 1 4 2 37 FO4PW WASHER 1 4 4 38 F0518ELN ELASTIC LOCKNUT 5 16 18 1 39 F0518HN HEX NUT 5 16 18 1 40 F061622HCS HHCS 3 8 16 x 2 3 4 GR5 ZP 2 41 F061644HCS HHCS 3 8 16 x 5 1 2 GR5 ZP 1 42 F0616DLN DEFORMED LOCKNUT 3 8 3 43 F06SW WASHER 3 8 6 44 FO8SW WASHER 2 45 F091238HCS HHCS 9 16 12 x 4 3 4 GR5 ZP 1 46 F0912ELN ELASTIC LOCKNUT 9 16 12 1 REPLACEMENT PARTS 16080 LEVER ARM ASSEMBLY includes 14 19 21 amp 24 1 16092 HANDLE ASSEMBLY includes all above items 1 16367 SPRING SPOOL ASSEMBLY includes 27 29 31 amp 34 1 25 Y UM Q N zZ a o Q X a X X o lt a Z O I HONDA GX270 GX390 amp ROB
12. 37 ft lbs 52 ft lbs 7 16 20 27 ft lbs 41 ft lbs 58 ft lbs 1 2 13 37 ft lbs 57 ft lbs 80 ft lbs 1 2 20 41 ft lbs 64 ft lbs 90 ft lbs 9 16 12 53 ft lbs 82 ft lbs 115 ft lbs 5 8 11 73 ft lbs 112 ft lbs 159 ft lbs 5 8 18 83 ft lbs 112 ft lbs 180 ft lbs 3 4 16 144 ft lbs 200 ft lbs 315 ft lbs 1 8 188 ft lbs 483 ft lbs 682 ft lbs 1 14 210 ft lbs 541 ft lbs 764 ft lbs 1 1 2 6 652 ft lbs 1462 ft lbs 2371 ft lbs M 6 3 ft lbs 4 ft lbs 7 ft lbs M8 6 ft lbs 10 ft lbs 18 ft lbs M 10 10 ft lbs 20 ft lbs 30 ft lbs CONVERSIONS in lbs x 0 083 ft lbs ft lbs x 12 in lbs ft lbs x 0 1383 kg m ft lbs x 1 3558 Nem Service Tools Part No Description 07276 Adjustment Tool Tilt Arm Parallelism 07277 Adjustment Tool Tilt Arm Height Gage 07279 Installation Tool Spider Bushing 06459 16421 Bearing Spool Tool Gearbox Disassembly Refer to Gearbox Assembly page 14 1 10 11 Remove the handle engine guard ring and mounting plate if there is one Loosen the square head set screw page 16 20 until the gearbox housing can be lifted off the spider assembly Flip the gearbox housing 8 over and set it on the four guard ring pads Remove the yoke arm 11 by removing one of the retaining rings 7 holding the pivot rod 14 and sliding the rod out of the holes Remove the two flange bolts 25 and the two flat head screws 26 that hold the cover 9 to the gearbox housing
13. 5 05357 CLEVIS 1 6 05358 KNOB 1 7 05363 BEARING 1 8 05365 SHAFT 1 9 05381 CABLE 1 10 05395 PIVOT PIN 1 11 05398 SAFETY SWITCH ASSEMBLY 1 12 05477 SWIVEL 1 13 05556 ADAPTER NUT 1 14 06888 THROTTLE ASM includes 23 24 amp 26 1 15 07592 SPLICE TERMINAL 1 16 07662 WIRE 1 17 07774 WIRE SHORTING 63 long 1 18 07868 HANDLE 1 19 07877 CASING 1 20 11742 HANDLE BAR 1 21 16047 SELF TAP SCREW 1 4 20 x 1 2 2 22 F042003FWS 1 4 20 x 3 8 ZP 1 23 F042006HCS HHCS 1 4 20 x 3 4 ZP 2 24 F0420ELN ELASTIC LOCKNUT 1 4 20 2 25 FO4LW LOCKWASHER 1 4 2 26 FO4PW WASHER 1 4 2 27 F0512SP SPIROL PIN 5 16 x 1 1 2 1 28 F051805SSS SHSS 5 16 18 x 5 8 1 29 F0518ELN ELASTIC LOCKNUT 5 16 18 1 30 F0518HN HEX NUT 5 16 18 1 31 F061622HCS HHCS 3 8 16 x 2 3 4 ZP 2 32 F061644HCS HHCS 3 8 16 x 5 1 2 ZP 1 33 F0616DLN DEFORMED LOCKNUT 3 8 3 34 FO6SW WASHER 3 8 6 REPLACEMENT PARTS 07876 HANDLE ASSEMBLY includes all above items 1 23 Constant Force Handle Assembly 24 DESCRIPTION QTY 1 01250 GROOVE PIN 1 2 01253 GRIP 2 3 01278 PULLEY 1 4 05357 CLEVIS 1 5 05395 PIVOT PIN 1 6 05398 SAFETY SWITCH ASSEMBLY 1 7 05477 SWIVEL 1 8 06888 THROTTLE ASM includes 33 35 amp 37 1 9 07592 SPLICE TERMINAL 1 10 07662 THROTTLE WIRE 1 11 07774 SHORTING WIRE ASM
14. CHINE DEMONSTRATION MACHINE OR ANY OTHER MBW PRODUCT 28 NOTES 29 NOTES 30
15. IN 9hp Engine Assembly DESCRIPTION QTY 1 01444 ENGINE HONDA GX160 1 17370 ENGINE ROBIN EX17 6 1 17371 ENGINE ROBIN EX21 7hp 1 17440 ENGINE ROBIN EX27 9hp 1 2 15674 ENGINE HONDA GX270 1 12887 ENGINE HONDA GX390 1 3 07636 DEFLECTOR EXHAUST 1 4 19372 LIFTHOOK PLATED TROWEL For engines 9 13 hp 1 19370 LIFTHOOK PLATED TROWEL For engines 5 7 hp 1 5 F0203HTB HEX BOLT 8 x 3 8 2 6 F051814HCS HHCS 5 16 18 x 1 3 4 4 T F0518FN FWLS 5 16 18 4 8 F052406HCS HHCS 5 16 24 x 3 4 4 9 FOSLW LOCKWASHER 5 16 4 10 F05SW WASHER 5 16 4 11 F061608FWS FWLS 3 8 16 x 1 4 12 F061614HCS HHCS 3 8 16 x 1 3 4 4 F061624HCS 5 3 8 16 x F46 4HD only 4 13 F0616FN FLANGE NUT 3 8 16 4 14 FO6SW WASHER 3 8 4 REPLACEMENT KITS Q2893881 AIR FILTER GX160 HONDA ENGINE Q52667 21 AIR FILTER GX270 HONDA ENGINE Q2893907 AIR FILTER GX390 HONDA ENGINE 27 WARRANTY WHAT DOES THIS WARRANTY COVER MBW Incorporated MBW warrants each New Machine against defects in material and workmanship for a period of twelve 12 months New Machine means a machine shipped directly from MBW or authorized MBW dealer to the end user This warranty commences on the first day the machine is sold assigned to a rental fleet or otherwise put to first use MBW warrants each Demonstration Machine agains
16. Ltd or MBW FRANCE SARL and written authorization for the return of merchandise or parts under the warranty must be obtained before shipment to MBW WHAT WILL MBW DO MBW s obligation under this warranty is limited to the replacement or repair of parts for a New Machine or Demonstration Machine at MBW factory branches or at authorized MBW distributors and such replacement or repair is the exclusive remedy provided hereunder Labor must be performed at an authorized MBW distributor MBW reserves the right to inspect and render a final decision on each warranty case and MBW s repair or replacement is solely within the discretion of MBW IT IS EXPRESSLY AGREED THAT THIS SHALL BE THE SOLE AND EXCLUSIVE REMEDY UNDER THIS WARRANTY UNDER NO CIRCUMSTANCES SHALL MBW BE LIABLE FOR ANY COSTS LOSS EXPENSE DAMAGES SPECIAL DAMAGES INCIDENTAL DAMAGES OR PUNITIVE DAMAGES ARISING DIRECTLY OR INDIRECTLY FROM THE USE OF THE NEW MACHINE OR DEMONSTRATION MACHINE WHETHER BASED UPON WARRANTY CONTRACT NEGLIGENCE STRICT LIABILITY OR ANY OTHER LEGAL THEORY THE FOREGOING WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING THE WARRANTIES OF MERCHANTABILITY FITNESS FOR USE AND FITNESS FOR A PARTICULAR PURPOSE AND ALL OTHER OBLIGATIONS OR LIABILITY ON MBW S PART MBW NEITHER ASSUMES NOR AUTHORIZES ANY OTHER PERSON TO ASSUME ON BEHALF OF MBW ANY OTHER LIABILITY OR WARRANTY IN CONNECTION WITH THE SALE OR SERVICE OF ANY NEW MA
17. OPERATOR S SAFETY AND SERVICE MANUAL F36 4 F46 4 This manual covers the following serial numbers and higher for each model listed E30 4 a aa 1726142 FE46 4 1 RES 1725227 WALK BEHIND TROWELS MBW Inc MBW UK Ltd MBW France S A R L 250 Hartford Rd PO Box 440 Units 2 amp 3 Z A d Outreville Slinger WI 53086 0440 Cochrane Street 11 rue Jean Baptiste N ron Phone 262 644 5234 Bolton BL3 6BN England 60540 BORNEL Fax 262 644 5169 Phone 01204 387784 France L5959 12 07 L Email mbw mbw com Fax 01204 387797 Phone 33 0 3 44 07 15 96 MBW Inc 2007 Website www mbw com Fax 33 0 3 44 07 41 28 Printed in the USA TABLE OF CONTENTS Safety Information Introduction ise sss der ab apres Safety Precautions Safety Decals Specifications Operation Introduction 22 558 42 xmi ho Before Starting amp Operating Starting Engine Operating ee debet Blade Pitch Adjustment Standard Blade Pitch Adjustment Constant Handle Bar Adjustment Stopping Maintenance Fluid Levels nit
18. VER place foot on guard ring Pull starter rope After starting open choke and allow engine to M B W INC U B S NT 4 027 991 for various operating 05950 TROWEL conditions TO STOP Return throttle to idle position put MADE IN U S A SAFETY SWITCH in OFF position Close fuel valve Safety Decals Decal Kit 01611 Spring under tension Consult manual before attempting service 16167 Not included With decal kit 16168 Not included With decal kit Spring under tension Consult manual before attempting service 16167 Not included 16168 with decal kit Not included With decal kit Safety Decals Constant Force Pitch Handle SPECIFICATIONS F46 4 F36 4 F46 4 F46 4HD Ring Size 36 in 46 in 46 in GX160 Honda 9 9 3 163 GX270 Honda 16 5 in37270cc GX270 Honda 16 5 in 270cc GX390 Honda 23 7 in3 389cc GX390 Honda 23 7 in3 389cc Gas Engines Robin 7 hp Robin Engine Speed 3400 rpm 3400 rpm 3400 rpm Trowel Speed 70 135 rpm 70 135 rpm 70 135 rpm 166 Ibs 74 kg GX160 194 Ibs 86 kg GX270 230 Ibs 102 kg GX270 243 lbs 108 kg GX390 293 lbs 129 kg Weight 165 Ibs 77 kg 6 hp 167 lbs 84 kg 7 hp 203 Ibs 100 kg 7 hp Noise Level 85 105 dBA 85 105 dBA 85 105 dBA Specifications subject to change without notice 1 Noise levels are based on ope
19. d to call attention to items or operations which may be dangerous to those operating or working with this equipment The symbol can be found throughout this manual and on the unit Please read these warnings and cautions along with all decals carefully before attempting to operate the unit Make sure every individual who operates or works with this equipment is familiar with all safety precautions WARNING GENERAL WARNING Indicates information important to the proper operation of the equipment Failure to observe may result in damage to the equipment and or severe bodily injury or death CAUTION GENERAL CAUTION Indicates information important to the proper operation of the equipment Failure to observe may result in damage to the equipment Safety Precautions n LETHAL EXHAUST GAS An internal combustion engine discharges carbon monoxide a poisonous odorless invisible gas Death or serious illness may result if inhaled Operate only in an area with proper ventilation NEVER OPERATE IN A CONFINED AREA DANGEROUS FUELS Use extreme caution when storing handling and using fuels as they are highly volatile and explosive in vapor state Do not add fuel while engine is running Stop and cool the engine before adding fuel DO NOT SMOKE SAFETY GUARDS It is the owner s responsibility to ensure that all guards and shields are in place and in working order IGNITION SYSTEMS Breakerless magneto
20. e Phone 33 0 3 44 07 15 96 Fax 33 0 3 44 07 41 28 13 Gearbox Assembly DESCRIPTION QTY 1 01243 SEAL GEAR SHAFT 1 2 01244 RETAINING RING EXTERNAL 1 3 01251 BEARING TAPER ROLLER Includes bearing and cup 2 4 01252 BEARING TAPER ROLLER includes bearing and cup 2 5 01254 KEY 5 16 SQUARE x 2 LONG 1 6 01256 O RING 1 7 01279 RETAINING RING EXTERNAL 2 8 05323 HOUSING GEARBOX 1 9 05326 COVER GEARBOX 1 10 05327 CAP BEARING 1 11 05329 ARM YOKE 1 12 05359 SHIM GASKET 0 004 05360 SHIM GASKET 0 010 13 05361 SHIM GASKET 0 004 05401 SHIM GASKET 0 010 14 05396 ROD PIVOT 1 15 05515 SHAFT WORM 1 16 05518 SPACER 1 17 05521 GEAR WORM 1 18 05523 SHAFT OUTPUT 1 19 05524 KEY 5 16 SQUARE x 1 11 16 LONG 1 20 05532 CAP BEARING 1 21 05533 SEAL SHAFT 1 22 06037 VALVE RELIEF 1 23 06392 O RING 2 24 F042007FWS FLANGE BOLT 1 4 20 x 7 8 8 25 F051807FWS FLANGE BOLT 5 16 18 x 7 8 2 26 F051808FSS FLAT HEAD SCREW 5 16 18 x 1 2 27 F0618SHPP PIPE PLUG 3 8 1 REPLACEMENT KITS 05470 KIT GASKET amp SEAL includes 1 12 13 21 amp 23 1 05546 GEARBOX ASSEMBLY includes all above items 1 15 Spider Assembly ITEM PART NO DESCRIPTION o9 LL LL 1 01169 GREASE FITTING
21. e trowel gearbox Refer to the Maintenance section of this manual AIR CLEANER Check to make sure the element is in good condition and properly installed FUEL FILTER Check to make sure the element is in good condition and properly installed Replace element if itis clogged or damaged Starting Engine 1 Open fuel valve 2 Turn engine switch to ON 3 Turn trowel safety switch to ON 4 Set throttle to idle 5 Choke engine if necessary you may not need to choke a warm engine 6 Placeone hand on the trowel handle and the other on the starter rope engine starts WARNING A NEVER place foot inside the guard ring when starting Pull starter rope repeatedly until 7 Move choke lever to open position 8 Allow engine to warm up for one or two minutes Operating Increase throttle to engage the clutch 2 Set throttle to desired position to achieve the appropriate trowel blade speed 3 To move forward push down on the right handle grip and pull up on the left handle grip 4 To move backward pull up on the right handle grip and push down on the left handle grip To move left pull up on both handle grips To move right push down on both handle grips Blade Pitch Adjustment Standard 1 increase the pitch rotate the tilt knob clockwise 2 To decrease the pitch rotate the tilt knob counterclockwise Blade Pitch Adjustment Constant Force 1 Toincrease the pitch squeeze the trigg
22. er and pull the lever towards you 2 decrease the pitch squeeze the trigger and push the lever away from you Handle Bar Adjustment 1 Loosen bolt securing the handle bar to trowel handle 2 Move handle bar to desired position 3 Tighten bolt to lock handle Stopping Engine 1 2 Move throttle to idle position Turn trowel safety switch to OFF 3 Close the fuel valve WARNING Always stop the engine before Adding fuel Leaving the equipment unattended for any amount of time Before making any repairs or adjustments to the machine MAINTENANCE WARNING Always exercise the stopping procedure before servicing or lubricating the unit After servicing the unit replace and fasten all guards shields and covers to their original positions before resuming operation Maintenance Schedule CAUTION Always verify fluid levels and check for leaks after changing fluids Do not drain oil onto ground into open streams or down sewage drains MAINTENANCE UUDALY WEEKLY MONTHLY YEARLY Grease yoke plate X Grease spider X Change gearbox oil X Check gearbox oil X Inspect drive belt X Check and tighten all hardware X Fluid Levels Check all hardware after the first 5 hours of use then follow the maintenance schedule SYSTEM FLUID VOLUME RECOMMENDED OIL Gearbox Oil 21 oz 620 ml 680 140wt Sulfer Free
23. es not cover the cost of transportation and other expenses which may be connected with warranty service but not specifically mentioned herein 6 This warranty does not cover any updates to any New Machine Demonstration Machine or any other MBW product MBW reserves the right to improve or make product changes without incurring any obligation to update refit or install the same on New Machines or Demonstration Machines previously sold WHAT MUST YOU DO TO OBTAIN WARRANTY COVERAGE Each New Machine or Demonstration Machine is accompanied by a Warranty Registration Card You must sign date and return the Warranty Registration Card to the place of origin of the New Machine or Demonstration Machine either to MBW Inc at P O Box 440 Slinger Wisconsin 53086 MBW UK Ltd at Units 2 amp 3 Cochrane Street Bolton BL3 6BN United Kingdom or MBW FRANCE SARL at ZA D Outreville 5 Rue Jean Baptiste Neron Bornel 60540 France within ten 10 days after purchase assignment to a rental fleet or first use This signed warranty card is the buyer s affirmation that he has read understood and accepted the warranty at the time of purchase Failure to return the warranty card as specified herein renders the warranty null and void In order to receive warranty coverage consideration warranty claims must be submitted within thirty 30 days after the New Machine or Demonstration Machine fails Warranty claims must be submitted to MBW Inc MBW UK
24. haft assembly into the gearbox housing and put cover 9 into place 8 Measure the gap between the cover and the gearbox housing apply uniform finger pressure to the center of the cover and measure the gap with a feeler gage See the table below for the measured gap and what shims to use Gap Measurement Shim Gasket 001 008 None 009 012 1 405361 013 018 1 405401 019 022 1 05361 amp 1 05401 9 Remove the cover and install the proper shims 13 10 Brush a light coat of oil on the o ring groove and 17 18 Install the worm shaft 15 with the bearings 4 into the gearbox housing The gears must be meshed properly Install the bearing cap 20 and apply uniform finger pressure to the cap Measure the gap between the cap and gearbox housing with a feeler gage See the chart below for the measured gap and the shims to use Gap Measurement Shim Gasket 001 008 None 009 012 1 405359 013 018 1 405360 019 022 1 405359 amp 1 05360 19 20 21 22 Remove the bearing cap and install the proper shims 12 Brush a light coat of oil on the o ring groove Roll the o ring 23 over the inside lip and into the groove of the bearing cap Poor one can 21 oz of 05700 oil into the worm shaft bearing cap opening Install the cap and secure it with four flange bolts 24 Apply a small amount of loctite 29
25. ing and to carry an adequate parts stock in all areas of the country Their sales engineers are available for professional consultation If you cannot locate an M B W distributor in your area contact MBW Inc or one of our Sales Branches listed below When ordering replacement parts be sure to have the following information available Model and Serial Number of machine when ordering M B W parts Model and Serial Number of engine when ordering engine parts Part Number Description and Quantity Company Name Address Zip Code and Purchase Order Number Preferred method of shipping REMEMBER You own the best If repairs are needed use only M B W parts purchased from authorized M B W distributors Write Model Number here Write Serial Number here Contact Information DECAL LOCATION X STAMPED LOCATION The units serial number can be found in the following locations The model serial number decal is located on the rear side of the gearbox next to the engine and beltguard The serial number is stamped on the front of the gearbox MBW Inc 250 Hartford Rd PO Box 440 Slinger WI 53086 0440 Phone 262 644 5234 Fax 262 644 5169 Email mbw mbw com Website www mbw com Units 2 amp 3 MBW UK Ltd Cochrane Street Bolton BL3 6BN England Phone 01204 387784 Fax 01204 387797 MBW France S A R L Z A d Outreville 11 rue Jean Baptiste N ron 60540 BORNEL Franc
26. lace more frequently if under more severe conditions Bearings Replace anytime a bearing is rough binding discolored or removed from housing or shaft Blades Replace when the edges become sharp or uneven Finish blades can be reversed Bushings Trowel Arm Replace if the trowel arm can be moved up and down more than 3 4 inch 19 mm at the end of the arm Carriage Bolts Reset the height after trowel arm teardown or if the trowel develops chatter or windmilling Use height gage kit 07277 when setting Clutch Replace clutch if it does not disengage below 2000 rpm Gaskets and Seals Replace at every overhaul and teardown Use MBW gasket and seal kit 05470 Replace after the first 50 hours of operation then every 500 operating hours or yearly GENES thereafter Spark Plug Change after 75 hours of operation Torque Bolts d bolts after the first eight hours of operation and check every 25 Worm Gear Replace if the teeth show wear marks or become sharp Worm Shaft Replace if the teeth show wear marks or become sharp 12 Use 07279 tool to ensure proper depth of bushings REPLACEMENT PARTS The warranty is stated in this book on page 28 Failure to return the Warranty Registration Card renders the warranty null and void MBW Inc has established a network of reputable distributors with trained mechanics and full facilities for maintenance and rebuild
27. met when operated in areas that are under the jurisdiction of that United States Department Safety Decals Carefully read and follow all safety decals Keep them in good condition If decals become damaged replace as required If repainting the unit replace all decals Decals are available from authorized MBW distributors Order the decal set listed on the following page s Start engine at idle only NEVER place foot on guard ring i Correct m starting ROTATING PARTS position can crush and cut Keep hands away 12573 Read the Operating Instructions before operating this piece of equipment Keep unauthorized and untrained people away from this equipment ROTATING amp MOVING PARTS Make sure all guards and safety devices are in place Wear approved hearing protection foot protection eye protection and head protection SHUT OFF the motor before servic ing or cleaning DO NOTRUNinan enclosed area The engine produces carbon monoxide a POISONOUS GAS U S PATENT 4 027 991 05950 TROWEL OPERATING INSTRUCTIONS READ OWNER S MANUAL before attempting to start or operate this machine Check engine oil and trowel gearbox oil Open fuel valve put engine switch to on Put SAFETY SWITCH in ON position set throttle at idle position Choke engine A warm engine may not need to be choked When starting engine place one hand on trowel handle and other hand on engine starter rope NE
28. n a vise to secure for disassembly Loosen handle pivot bolt 41 and fold handle forward Remove the four bolts 32 bolts on the back of the springbox Carefully rotate lever 19 arm backwards until you feel the cable tension release When it releases there will be no spring tension on the lever 19 in either direction Remove spring retainer bolt 45 and end covers 26 Remove remaining two bolts 33 to separate spring box 25 from handle With a long needle nose pliers disconnect the cable from the spring If you are only replacing spring 28 proceed with step 10 If you are replacing cable and or clevis refer to step 13 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Note orientation of spring assembly Remove bearing spool 29 by pushing it out either side Remove spring assembly by forcing it out either side Refer to step 18 for assembly Push threaded portion of cable into tube Slide clevis assembly out of tube toward the bottom Remove cable from tube Route barrel end of new cable into tube Route threaded portion of the cable over the pulley on clevis and back into the tube Guide the threaded end through the slot in the handle as you insert clevis into the handle tube Insert one of the handle bolts through the clevis mounting holes to hold it in place See figure 7 Install spring 28 into spring box 25 Note bearing spool must be removed to
29. o ITEM PART NO DESCRIPTION 4 2 2 2 4 4 a t t t a a z 2 2 o a c a lt lt lt 1 05565 GUARD RING 36 1 1 1 1 1 05575 GUARD RING 46 1 1 1 1 2 05763 EDGER 36 2 2 2 2 2 05861 EDGER 46 2 2 2 2 3 07607 BELTGUARD 1 1 1 1 07825 BELTGUARD 1 1 4 07823 PLATE ADAPTER 1 1 1 12762 PLATE ADAPTER F46 4HD only 1 5 07903 GUARD RING EDGER 36 1 1 1 1 1 07904 GUARD RING EDGER 46 1 1 1 1 6 12763 ADAPTER 1 1 4 F46 4HD only 1 7 12764 ADAPTER 3 4 F46 4HD only 1 8 F051806FWS FLANGE SCREW 5 16 18 x 3 4 2 2 2 2 2 2 9 F051812HCS HEX HEAD CAP SCREW 5 16 18 x 1 1 2 F46 4HD 1 10 F051816HCS HEX HEAD CAP SCREW 5 16 18 x 2 FAG AHD only 1 11 F0518FN FLANGE NUT 5 16 18 2 2 2 2 2 2 12 FOSSW WASHER 5 16 F46 4HD only 2 13 F061608HCS HEAD CAP SCREW 3 8 16 x 1 4 4 4 14 F061612FSS FLAT HEAD SCREW 3 8 16 x 1 1 2 4 4 4 F061622FSS FLAT HEAD SCREW 3 8 16 x 2 3 4 F46 4HD only 4 15 FO6LW LOCKWASHER 3 8 4 4 4 16 FO6SW WASHER 3 8 8 8 8 17 F0813WN WINGNUT 1 2 13 4 4 4 4 4 4 18 FO8SW WASHER 1 2 4 4 4 4 4 4 REPLACEMENT KITS 12766 KIT HEAVY WEIGHT TROWEL 1 21 Assembly 22 DESCRIPTION QTY 1 01250 GROOVE PIN 1 2 01253 GRIP 2 3 01278 PULLEY 1 4 01302 THRUST BEARING 1
30. ot necessary to disconnect the wire Turn pitch control knob all the way counterclockwise Spiral pin 29 should be aligned with hole on left and slot on right Drive pin out toward the slot just far enough to unhook cable Slide clevis 5 out of the tube and remove cable Since it is not possible to thread the cable while the clevis is in the tube it must be put through the pulley with the clevis removed Route both ends of the cable into the bottom of the tube The threaded end must come out of the slot Figure 7 Insert clevis with cable into tube Use a handle bolt to hold clevis in place Push cable up align eyelet with spiral pin hole Press spiral pin in flush with outside of slot on handle Install switch on handle Install handle on trowel Spider Bushing 5 1 outer bushing of the spider bushing out Repeat with inner bushing TUBE 1 1 4 I D X 4 LONG Screw a 3 4 14 pipe tap about half way into the worn Insert a 3 4 x 8 1 2 push rod into the opposite side Use a 1 1 4 x 4 tube on upper end to press old 3 4 14 PIPE TAP 6459 BUSHING as shown 07279 _ 07279 d P Outer Bushing Figure 9 Inner Bushing PUSH ROD 3 4 X 8 1 2 Figure 8 Parts Replacement Cycles and Tolerances Air Cleaner Element Replace after 100 hours if the engine is operating under good clean air conditions Service and rep
31. rating conditions and will vary with background noise OPERATION Introduction MBW equipment is intended for use in very severe applications They are powered by four cycle engines and are available in different sizes and a selection of engines This parts manual contains only standard parts Variations of these parts as well as other special parts are not included Contact your local MBW distributor for assistance in identifying parts not included in this manual Before Starting amp Operating REMEMBER t is the owners responsibility to communicate information on the safe use and proper operation of this unit to the operators Review ALL of the Safety Precautions listed on page 1 of this manual Familiarize yourself with the operation of the machine and confirm that all controls function properly Know how to STOP the machine in case of an emergency Make sure hands feet and clothing are at a safe distance from any moving parts NEW TROWELS After assembling the handle inspect the throttle connections and confirm the remote throttle is actuating the engine throttle properly and all controls function properly FUEL SUPPLY The engines on MBW Power Trowels require a good grade of unleaded automotive gasoline See the engine owner s manual for specific details ENGINE OIL Check the oil level in the engine Refer to the Lubrication section of the engine owner s manual GEARBOX OIL Check the oil level in th
32. t defects in material and workmanship for a period of six 6 months Demonstration Machine means a machine used by MBW or its agents for promotional purposes This warranty commences on the first day the machine is sold assigned to a rental fleet or otherwise put to first use This warranty covers the labor cost for replacement or repair of parts components or equipment on New Machines or Demonstration Machines and MBW shall pay labor costs at MBW s prevailing rate to affect the warranted repair or replacement MBW reserves the right to adjust labor claims on a claim by claim basis This warranty covers the shipping cost of replacement parts components or equipment via common ground carriers from MBW to an authorized MBW dealer Air freight is considered only in cases where ground transportation is not practical MAY THIS WARRANTY BE TRANSFERRED This warranty is non transferable and only applies to the original end user of a new machine or demonstration machine WHAT DOES THIS WARRANTY NOT COVER 1 This warranty does not cover any Used Equipment Used Equipment means any MBW machine or equipment that is not a New Machine or a Demonstration Machine All Used Equipment is sold AS IS WHERE IS WITH ALL FAULTS 2 This warranty does not cover any New Machine Demonstration Machine or their equipment parts or components altered or modified in any way without MBW s prior written consent This warranty does not cover the use of par
33. ts not specifically approved by MBW for use on MBW products This warranty does not cover misuse neglect shipping damage accidents acts of God the operation of any New Machine or Demonstration Machine in any way other than recommended by MBW in accordance with its specifications or any other circumstances beyond MBW s control This warranty does not cover any New Machine or Demonstration Machine repaired by anyone other than MBW factory branches or authorized MBW distributors 3 This warranty does not cover and MBW affirmatively disclaims liability for any damage or injury resulting directly or indirectly from design materials or operation of a New Machine or Demonstration Machine or any other MBW product MBW s liability with respect to any breach of warranty shall be limited to the provisions of this document and in no event shall exceed an amount equal to the purchase price of the New Machine or Demonstration Machine purchased from MBW 4 This warranty does not cover engines motors and other assemblies or components produced by other manufacturers and used on a New Machine or Demonstration Machine as said engines motors and other assemblies or components may have warranties provided by the manufacturer thereof This warranty does not apply to consumable items such as v belts filters trowel and screed blades seals shock mounts batteries and the like all of which are sold AS IS WHERE IS WITH ALL FAULTS 5 This warranty do
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